I just looked through a few other QST reviews to get the 20
kHz spacing (20M band) IP3 results:
Orion II +21 (preamp off), +10 (preamp on)
FTDX-9000D +27 (preamp off), +15 (preamp on)
IC-7800 +37 (preamp off), +21 (preamp 1 on), +11 (preamp 2
on)
K2 +21 (preamp off), +4 (preamp on)
SDR-1000 +31 (preamp off), +20 (preamp low), +26 (preamp
medium) - BTW the SDR-1000's figures for IP3 at both 5 and 2
kHz are identical to its 20 kHz values (Oct 05 ARRL test).
All in all I just don't see that the Omni VII's 20 kHz IP3
spec as being that poor in the grand scheme of things. And
for what it's worth I personally don't recall ever running
into IP3 limitations, BDR and IMD DR yes, but not IP3.
Duane
N9DG
--- Rich McCabe <r.mccabe@ctiowa.com> wrote:
> Well I honestly don't know in real world cases how big of
> deal it is. But
> compared to most modern rigs it is very poor at 20khz. Not
> to mention from
> what I have heard the FT-2000 is nothing to set any
> standards by.
>
> Still seems like a Jupiter II. Not that I have anything
> against a Jupiter.
> Have one sitting two shelves above my Orion II.
>
> 73
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com]
> On Behalf Of Duane - N9DG
> Sent: Wednesday, January 17 9:43 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Omni VII on TenTec web site
>
> --- Rich McCabe <r.mccabe@ctiowa.com> wrote:
>
> > Except for the IP3 spec. Not sure what's up with that.
>
> I don't know about that, +8.5 dBm at 2 kHz (where it
> matters
> most) looks pretty darn good to me. The FT-2000 is only
> -19/-22 dBm at that spacing per the ARRL test results. And
> the +13 dBm at 20 kHz is good enough most real world cases
> as
> well.
>
> Duane
> N9DG
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